Alex Bellos, who has a fortnightly puzzle column in The Guardian among many other things, is hosting "A Brain-teasing Evening of Puzzles and Problems" at Portland Hall in London on Monday next week. I don't know if Alex knows about our sorts of puzzles, and I don't know whether this might be a good venue to introduce them to him if he doesn't, but it might still be a good night anyway. Tickets are still available.